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use restrict for housenumber lookups with few numbers

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Sarah Hoffmann
2023-11-25 18:39:28 +01:00
parent 32e7b59b1f
commit 0c72a434e0
1 changed files with 6 additions and 2 deletions
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8
nominatim/api/search/db_search_builder.py
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@@ -163,11 +163,15 @@ class SearchBuilder:
housenumber is the main name token.
"""
sdata.lookups = [dbf.FieldLookup('name_vector', [t.token for t in hnrs], 'lookup_any')]
expected_count = sum(t.count for t in hnrs)
partials = [t for trange in address
for t in self.query.get_partials_list(trange)]
if len(partials) != 1 or partials[0].count < 10000:
if expected_count < 8000:
sdata.lookups.append(dbf.FieldLookup('nameaddress_vector',
[t.token for t in partials], 'restrict'))
elif len(partials) != 1 or partials[0].count < 10000:
sdata.lookups.append(dbf.FieldLookup('nameaddress_vector',
[t.token for t in partials], 'lookup_all'))
else:
@@ -178,7 +182,7 @@ class SearchBuilder:
'lookup_any'))
sdata.housenumbers = dbf.WeightedStrings([], [])
yield dbs.PlaceSearch(0.05, sdata, sum(t.count for t in hnrs))
yield dbs.PlaceSearch(0.05, sdata, expected_count)
def build_name_search(self, sdata: dbf.SearchData,